222102222102 has 96 divisors (see below), whose sum is σ = 505139360544. Its totient is φ = 73133280000.

The previous prime is 222102222101. The next prime is 222102222109. The reversal of 222102222102 is 201222201222.

222102222102 is a `hidden beast` number, since 22 + 210 + 222 + 210 + 2 = 666.

It is a super-2 number, since 2×222102222102² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102222101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22427352 + ... + 22437252.

It is an arithmetic number, because the mean of its divisors is an integer number (5261868339).

Almost surely, 2^222102222102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222102222102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252569680272).

222102222102 is an abundant number, since it is smaller than the sum of its proper divisors (283037138442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222102222102 is a wasteful number, since it uses less digits than its factorization.

222102222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10476 (or 10464 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222102222102 its reverse (201222201222), we get a palindrome (423324423324).

The spelling of 222102222102 in words is "two hundred twenty-two billion, one hundred two million, two hundred twenty-two thousand, one hundred two".